VC's #pragma message

Ever tried to add the line number of a compile time message to your source code?

#pragma message(__FILE__ __LINE__ ": important part to be changed!!"

Won't work. Anyway, with some tricks you can do exactly this. The nice thing
is that you will never ever again need to use "Find" to locate a particular
message in your source code. Just double click the line with your message in the
output window and VC's editor will jump to that location.

Now you can use the #pragma message to add the location of the message:

#pragma message(__LOC__ "important part to be changed")
#pragma message(__LOC2__ "error C9901: wish that error would exist")

The preceding pragmas will yield the following output from the compiler (preprocessor)

C:\code\pragma\test.cpp(33) : Warning Msg: important part to be changed
c:\code\pragma\test.cpp(34) : error C9901: wish that error would exist

Have fun with your new #pragma's...

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